Fountain pen



March 15, 1927. 1,620,626

W. F. BENSON FOUNTAIN PEN Filed April 23. 1925 f a 2 20 L INVENTOR. h/mcrse ffiszvsow ATTORNEYS.

Patented Mar. 15, 1927.

UNITED STATES Parent omen.

FOUNTAIN Application filed April 23, 1925.

The invention relates particularly to fountain pens of self-filling type.

It is an objectof my invention to provide in a fountain pen simple but highly efficient filling means adapted to compress the usual ink sack or reservoir in such a manner as to cause the great-est amount of ink to be drawn therein.

Another object is to provide in a fountain pen employing an elastic ink sack. means for collapsing the sack beginning at the rear end thereof and proceeding toward the forward or delivery end.

A further object is to provide an improved form oil lever and pressure bar adapted to compress the ink reservoir, the pressure bar being carried at one end of a pressure spring and the lever having means for engaging the pressure bar and also means for engaging the pressure bar spring, the coaction of said means being operative to cause the pressure bar to first compress the rear or closed end of the sack.

With these and incidental objects in view, the invention consists of certain novel features of construction and combination of parts the essential elements of which are hereinafter described with reference to the drawing which accompanies and forms a part of this specification.

In the drawing, Figure 1 is a longitudinal sectional view of a completely assembled pen embodying my invention and showing the ink sack in released or normal position.

the operating lever is formed. Figure 3 is an end view of the formed lever. Figure 4: is a bottom view of the formed lever. Figure 5 is a longitudinal section of the pen barrel with the sack compressed. Figure 6 is a perspective view of the barrel sleeve. Figure 7 is a section taken on the line 7 -7, Figure 1. Figure 8 is a section taken on the line 88, Figure 5. Figure 9 is a plan view of the assembled pressure bar and pressure bar spring. Figure 10 is a side elevation of the same and Figure 11 is a front view of the lever pin.

As shown in the drawing the barrel 1, which may be made of rubber. metal or any other suitable material, has a sleeve or liner 2 therein and is formed about the rubber section at 3. This rubber section 3 preferably has a metal cover a thereover with a Figure 2 is a view of the blank from which PEN.

Serial No. 25,392.

and preferably ball clip 8 to serve to hold the pen in the pocket.

The rubber liner 9 is pressed into the cap as shown and has a'pocket 10 to receive the pen point.

The sack 11, preferably of rubber, is glued to the front end 12.

The pressure bar 13 isadapted to collapse the sack, collapsing the tass end first and this pressure bar is riveted to the pressure bar spring 14, which has its opposite end formed into a lip 15 (see also Figure 10) that engages with the sleeve 2 at 16. (see also Figure 6).

The lever 17 is hinged to the sleeveby the wire 18, (see Figures 5 andll). This lever 17 is formed from a blank, as shown in Figure 2 which has the tabs 19 formed back as shown in Figure 3.

The sleeve 2 is cut out as shown in Figure 6 at 20 to form a finger nail indentation for raising the lever and is also cut out as shown at 21 to allow the lever to pass thru the sleeve and is formed at 22 to receive the pin or rectangular ring 18.

The rectangular ring 18 which fits in the portion 22, extends about half way into the opening 21. allowing the lever to be inserted with the sleeve, the pin springing enough to prevent injury to the lever when it enters the barrel at its open end. The open end 23 of this ring holds the lever so that by springing the ring open the lever may be removed after assembly if necessary.

Looking at Figure 5, it will be noted that thepressure bar is pushed downward directly by the end 24: of the lever and that the shoulder 25 of the lever also impinges directly on and depresses the spring 14:.

The co-action between the lever spring and pressure bar is such that the tass end 26 of the sack is first closed and the pressure point travels forwardly until. the entire sack is collapsed, thus preventing the pocketing of any air in the sack.

Stops 26 are provided on the pressure bar for limiting the mot-ion of the lever 17.

lVhile I have described my invention and illustrated it in one particular design, I do not wish it understood that I limit myself to this construction, as it is evident that the application of the invention may be varied in many ways ithin the scope of the following claims:

Claims:

1. In a fountain pen the combination with a barrel of a pressure bar spring mounted therein, a pressure bar carried at one end of said spring, a lever mounted inhinged relation with said barrel, said lever having means for engaging said spring and also means for engaging said pressure bar, the coaction of'said means being operative to depress said pressure bar, the end thereof joined with said spring being depressed ahead of the free end thereof;

2. In a fountain pen the combination with. a barrel, and a collapsible ink reservoir therein, or" a pressure bar mounted within said barrel, a pressure bar spring adapted to engage said pressure bar at one end thereof, a lever mounted in hinged relation with said" barrel, means on said lever for engaging said pressure bar and means on said lever for engaging said spring, the coat:- tion of said means being operative t0-cause said pressure bar to compress said reservoir from the rear end thereoi towards the forward end thereof,

in a fountain pen the-combination with a barrel and a compressible ink reservoir therein, of a pressure bar spring, a pressure bar carried at one end by one end of said spring, a lever mounted in hinged relation with said barrel with one of its ends engaging said pressure bar and means at an in termediate point on said lever for engaging said spring whereby the joined end of said pressure bar and spring will be depressed against said reservoir ahead of the free end of said pressure bar.

4:. In a fountain pen the combination with a barrel of a pressure bar spring mounted therein and having one end fixed with said barrel, a pressure bar carried at one end by one end of said spring and a "Forked lever mounted in hinged relation with said barrel and straddling said spring, the end of said lever being adapted to engage said pressure bar and the shoulder of the fork engaging said spring, whereby sa'd bar will be depressed when said lever swung.

5. In a fountain pen, the combination with a barrel, of a sleeve positioned therein, said sleeve having a cut away portion to allow the passing of a lever therethru, a rectangular ring mounted in a depressed portion" of said sleeve and having the open end thereof extending into said cut away portion to receive the lever therein.

XVALTER F. BENSON. 

